UMI Performance · New
UMI Performance 78-88 GM G-Body Adjustable Upper Control Arms- Poly Bushings
MPN 302500-B · Store SKU umi302500-B
Supplier stock checked 11/7/2026, 5:17:39 AM UTC. Adding a part does not reserve it.
Request a return within 30 calendar days after delivery. New parts must be unopened and unused.
Shipping & returns ↗This policy does not limit rights required by law.Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.
Product details
UMI Performance adjustable upper control arms are designed to optimize your vehicle's performance by allowing you to adjust the pinion angle for improved handling and traction. These control arms are made with high-quality materials, including CNC machined 0.250" steel mounting plates, 4140 chrome moly threaded tube adapters, and a 4140 chrome moly solid adjuster. One of the key features of these control arms is the on-car adjuster, which makes it easy to make adjustments without removing the control arm from the vehicle. By adjusting the pinion angle, you can lower your track times, increase traction, and reduce wheel hop. Additionally, these control arms come with grease-able fluted polyurethane bushings and a durable gloss powder coat finish. Overall, UMI Performance adjustable upper control arms are built for precision and durability, making them an essential upgrade for any performance enthusiast. UMI Performance adj upper control arms let you fine-tune pinion angle for better handling, traction, and reduced wheel hop. Built with 4140 CrMo components and greaseable bushings, they adjust on-car and feature a durable powder coat finish UMI adjustable upper arms improve traction, handling, and pinion angle.
Manufacturer fitment & guides
Check 302500-B against the manufacturer’s application information below.
A manufacturer application guide is not available for this listing. Request the exact application from JuiceBuilt before payment.
Part-specific notes
- California Proposition 65: Y